已建议对组蛋白脱乙酰基酶8(HDAC8)的特异性抑制是治疗神经母细胞瘤和T细胞恶性肿瘤的有前途的选择。研究了一种新型的高效和选择性HDAC8抑制剂,该抑制剂具有嘧啶并[1,2- c ] [1,3]苯并噻嗪-6-亚胺骨架,与包含锌结合基团的传统HDAC抑制剂概念完全不同( ZBG),在大多数情况下可能与目标蛋白表面相互作用的异羟肟酸酯基团,间隔基和封端基团。尽管缺少ZBG,但一些新化合物显示出对HDAC8的出色效价(单位为几纳摩尔)。嘧啶基[1,2- c] [1,3]苯并噻嗪-6-亚胺也抑制实体瘤和血液肿瘤细胞的生长。新型HDAC抑制剂类别的小尺寸和有益的理化性质突显了高度的药物相似性。这种和广泛的结构-活性关系表明,将具有嘧啶并[1,2- c ] [1,3]苯并噻嗪-6-亚胺骨架的化合物进一步开发为创新的高效抗癌药物的巨大潜力。
[EN] SELECTIVE HDAC8 INHIBITORS AND THEIR USES<br/>[FR] INHIBITEURS DE HDAC8 SÉLECTIFS ET LEURS UTILISATIONS
申请人:HOCHSCHULE DARMSTADT
公开号:WO2017077008A1
公开(公告)日:2017-05-11
The present invention relates to small molecule compounds based on benzopyrimido- or benzoimidazo-thiazin-imine as well as their (synthesis) intermediates and their use as HDAC inhibitors, in particular HDAC8 inhibitors. The present invention also relates to the use of said compounds in the treatment of cancer and as therapeutic agents for eukaryotic parasites and respective methods of treatment.
A Cu-catalyzed tandem synthesis of azole-fused pyrimido[1,2-c]quinazolines and imidazo[1,2-c]quinazolines has been developed. The reaction is based on a C–N cross-coupling/C–H functionalizationreaction of 2-(2-bromophenyl)-1,4,5,6-tetrahydropyrimidines with azoles. A variety of the desired polycyclic products were obtained in moderate to excellent yields.
已开发出Cu催化串联合成吡咯并嘧啶并[1,2- c ]喹唑啉和咪唑并[1,2- c ]喹唑啉的方法。该反应基于2-(2-溴苯基)-1,4,5,6-四氢嘧啶与唑类的CN交叉偶联/ CH功能化反应。以中等至优异的产率获得了各种所需的多环产物。
EcoFriendly Synthesis of Tetrahydropyrimidine Derivatives in Aqueous Medium Under Ultrasonic Irradiation
作者:Valasani Koteswara Rao、Boppudi Hari Babu、Kilaru Raveendra Babu、Doddaga Srinivasulu、Chamarthi Naga Raju
DOI:10.1080/00397911.2011.582218
日期:2012.11.15
Abstract A simple, efficient, and ecofriendly procedure was developed for the synthesis of 2-substituted 1,4,5,6-tetrahydropyrimidine derivativescatalyzed by N-bromosuccinimide using ultrasonic irradiation in aqueousmedium. Prominent advantages of this new method are good yields, aqueousmedium, short reaction times, and easy workup procedure. The compounds were characterized by infrared, NMR, liquid
Efficient Synthesis of Pyrimido[1,2-<i>c</i>] [1,3]benzothiazin-6-imines and Related Tricyclic Heterocycles by S<sub>N</sub>Ar-Type C−S, C−N, or C−O Bond Formation with Heterocumulenes
A simple and practical synthetic method of pyrimido[1,2-c]-[1,3]benzothiazin-6-imines and related tricyclic heterocycles has been developed. Treatment of 2-(2-haloaryl)-tetrahydropyrimidines with NaH and a heterocumulene such as carbon disulfide, isothiocyanates, and isocyanates in DMF provides the desired cyclization products through a regioselective SNAr-type reaction. This method provides direct access to PD 404182 and related compounds.